I do understand the economics of such decision in the old days, especially having a single piece of red lens for rear light cluster is likely much cheaper than a red/amber combination lens. But with LEDs, and light functions by software programming, such intentional change for North American markets with little cost saving do not make sense to me at all. NHTSA has conducted analysis in 2008 and 2009 and concluded that Amber Rear turn signals do significantly reduce rear ended crash. This makes it more puzzling for German manufacturers to insist on rear red turn signal for North American markets when they pride themselves on superior safety. And in many cases, you can see that the rear lights do not light up as they were designed (blinking everything together instead of individual groups of brake LEDs, turn LEDs, parking light LEDs as it was designed).